Thick polyester films are an excellent choice for insulation applications in various industries, such as the electronics industry, heat transferring, inkjet printing, blistering, screen printing, offset printing, and flexo printing. These films, with a thickness greater than 50 microns, are particularly useful for ground and phase insulation in motor applications, providing excellent mechanical and dielectric properties. Milky white and hazy variants are also available, offering high insulation for interturn and liner insulation, wrapping insulation for coils and cables, and slot insulation in rotating electrical machines. Milky white thick polyester films are widely used in motor insulation due to their superior mechanical and dielectric properties.